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These head studs are ideal for those of you who are running much more boost and power over factory levels and need a strong head stud kit to keep y...
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ARP uses a premium grade 8740 alloy that is rated far superior to "aircraft" quality. Each stud is placed vertically in special racks and precisely...
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ARP Rod Bolts for the 2.5L Subaru engine are made of premium grade 8740 chrome moly steel and heat treated to a nominal tensile strength of 190,000...
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ARP Subaru EJ20, EJ25, & EJ257 Main Bolts are crafted from 8740 forged chrome moly and feature generous under-head radius and rolled threads fo...
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With a tensile strength of 190,000 psi, these heat-treated, Cadmium-plated 8740 chrome moly ARP wheel studs are a necessity for any car with aggres...
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